The flu vaccine is working - Takeaways - MDSpire

The flu vaccine is working

  • By

  • O. Rose Broderick

  • January 16, 2026

  • 0 min

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  • 1

    This year's flu vaccine provides some protection against the prevalent H3N2 viruses, specifically subclade K.

  • 2

    Early research indicates the flu vaccine is approximately 36% effective in France and 40% effective in China against H3N2.

  • 3

    Concerns arose about the flu vaccine's effectiveness due to late-emerging virus mutations not included in the current vaccine.

  • 4

    The findings from the UK and University of Pennsylvania support the vaccine's efficacy against the circulating flu strains.

  • 5

    Overall, the flu vaccine is offering some level of protection despite concerns about its effectiveness this season.

Original Source(s)

The flu vaccine is working

  • by O. Rose Broderick

  • January 16, 2026

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